Side by side

Marathon Arctic OSAR 41mm AutomaticvsChristopher Ward C63 Sealander Extreme GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Arctic OSAR 41mm Automatic
MarathonArctic OSAR 41mm Automatic
MSRP $1,800
C63 Sealander Extreme GMT
Christopher WardC63 Sealander Extreme GMT
MSRP $1,850

At a glance

16 of 29 specs differ
Diameter
Arctic OSAR 41mm Automatic41mm
C63 Sealander Extreme GMT48mm
Power Reserve
Arctic OSAR 41mm Automatic40h
C63 Sealander Extreme GMT56h
Water Resistance
Arctic OSAR 41mm Automatic300m
C63 Sealander Extreme GMT150m
MSRP
Arctic OSAR 41mm Automatic$1,800
C63 Sealander Extreme GMT$1,850

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
41mm
48mm
Thickness
13mm
12.05mm
Lug-to-Lug
43.5mm
48mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Brushed + Bead-blasted + Sandblasted
Water Resistance
300m
150m

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
White
Black
Lume
None
SLN X1 BL / GL

Movement

4 specs
Caliber
Sellita SW220-1
SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56h
Complications
None
GMT, Moonphase, Day-date

Pricing

1 specs
MSRP
$1,800
$1,850

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon Arctic OSAR 41mm Automatic

The Marathon Arctic OSAR 41mm Automatic is noted for its comfortable wearability on wrists under 7 inches, with one owner finding the 41mm size perfect. Accuracy observations vary, with one owner reporting a consistent +1 second per day and another noting -20 seconds per day. The watch features a Sellita automatic movement and has dimensions of 14mm thickness and a 48mm lug-to-lug. Overall, owners appreciate the Marathon Arctic OSAR 41mm Automatic for its comfortable fit and Marathon's overall appeal.

Christopher Ward C63 Sealander Extreme GMT

Owners and reviewers widely praise the Christopher Ward C63 Sealander Extreme GMT for its excellent value, tactical and travel-ready design, and impressive lume, with the black dial being a collective favorite. Its 41mm brushed steel case is noted for comfort and wearability, complemented by a well-proportioned design and excellent legibility. The watch features a Sellita SW330-2 movement with a 56-hour power reserve and 150m water resistance, including a shock-absorbing mount. Some find its refinement slightly less than pricier alternatives, and its GMT movement is considered less practical than a flyer GMT. On balance, the Christopher Ward C63 Sealander Extreme GMT is highly regarded by owners and reviewers for its compelling blend of features, rugged design, and exceptional value.

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